Featured here in the latest installment of TVGuide.com's Getting Lost video series:

• I start off with a reminder about some Very good news (with a capital V).• Leaping ahead in time a bit — as a Lostie is prone to do — I had to wonder: Are the producers locked into what the series' final scene will be, when Lost signs off in May 2010? Carlton Cuse gives me an update.• Who is the "they" Jacob warned Un-Locke about? I share your top two theories.• Similarly, this week's Burning Question tackles another case of uncertain identity